Tracking F/R subinterface

Answered Question
Apr 19th, 2007
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I am building Lan enviroment which will connect to the remote host via two redundant F/R links, the default gateway for the PCs is a VIP of HSRP/VRRP.


The issue is how to track Frame-relay subinterface ?.


Apprciate your advise.


Thanks

Sami


Correct Answer by paolo bevilacqua about 10 years 5 days ago

Hi,


you could take advantage of a feature, "Frame Relay end-to-end Keepalives" that I've championed and tested when I was working at Cisco.

Please see:

http://cisco.com/en/US/products/sw/iosswrel/ps1830/products_feature_guide09186a0080087a58.html


Hope this helps, please rate post if it does!


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Overall Rating: 5 (1 ratings)
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CSCO10899265 Sun, 04/22/2007 - 17:22
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HI,


You may implement the 'track int s0/0.1' on teh lan interface to track the frame relay connections.



ssalem Wed, 04/25/2007 - 05:37
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Hi,

the issue is the subinterface stay always up even if the other end is down.


Thanks

royalblues Wed, 04/25/2007 - 05:50
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Are you sure.


Generally the main interface stays up, but the subinterface always goes down.


Anyway HSRP would depend on the physical status of the link and hence in these scenarios it is reconmmended to run a routing protocol which can detect the loss of neighbor and fail over. Traffic does take the extra hop but since this is within the lan it should be < 1ms


You can also use enhanced object tracking


HTH, rate if it does

Narayan

ssalem Fri, 04/27/2007 - 13:30
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Thansk Narayan for the advise. The issue is; static routing is not an option in the case I am working on.


Correct Answer
paolo bevilacqua Wed, 04/25/2007 - 07:04
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Hi,


you could take advantage of a feature, "Frame Relay end-to-end Keepalives" that I've championed and tested when I was working at Cisco.

Please see:

http://cisco.com/en/US/products/sw/iosswrel/ps1830/products_feature_guide09186a0080087a58.html


Hope this helps, please rate post if it does!


paolo bevilacqua Sat, 04/28/2007 - 02:51
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Thank you for the nice rating and good luck with your project. It's striking to see how fast the years have gone since that feature was developed (circa '98).

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